Home / 923,409.80-1,385,114.70-503,505.80

Finding the Fourth Proportional to 923,409.80, 1,385,114.70 and 503,505.80

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Solution

The fourth proportional to 923,409.80, 1,385,114.70 and 503,505.80 is: 755,258.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,409.80 : 1,385,114.70 = 503,505.80 : x
  2. Step 2: Convert to fraction form
    923,409.80/1,385,114.70 = 503,505.80/x
  3. Step 3: Cross multiply
    923,409.80x = 1,385,114.70 × 503,505.80
  4. Step 4: Simplify right side
    923,409.80x = 697,413,285,115.26
  5. Step 5: Solve for x
    x = 697,413,285,115.26/923,409.80
  6. Step 6: Final answer
    x = 755,258.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.